Question

A turbines blade accelerates from 1.74 x 10^4 rad/s to 4.75 rad/s. During the acceleration the blades make 4.4 x 10^3 revolutions.

a) what is the angular acceleration?

b) how long will it take the fan blades to reach an angular velocty of 7.64 x 10^4?

Answer #1

I here answer acroding to the given problem. But i fell that angular velocity given (4.75 rad/s) may be other value as written it accelerated .

If you have another value then inform me i can repost the solution again

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at 2.9 x 10-3 rad/s2 for 2.4 x 103 s. For the next 4 x 103 s the
propeller rotates at a constant angular speed. Then it decelerates
at 6 x 10-3 rad/s2 until it slows (without reversing direction) to
an angular speed of 6 rad/s. Find the total angular displacement of
the propeller.
Do not put units in answer.
Do not put answer in scientific notation

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The drive propeller of a ship starts from rest and accelerates
at 2.1 x 10-3 rad/s2 for 2.1 x 103 s. For the next 2 x
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decelerates at 2 x 10-3 rad/s2 until it slows (without
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angular displacement of the propeller.

A centrifuge takes 100 s to spin up with constant angular
acceleration (α) from rest to its final angular
speed of 1,875 (rad/s).
What is the angular acceleration (in rad/s2) of the centrifuge
as it spins up?
(Hint: use relationship
between angular velocity and angular acceleration)
(ii) How
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its final
angular
speed? (Hint: use relationship between angular displacement
and
angular
acceleration, and noting that one revolution =
2 rads)...

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Frictional torque causes a disk to decelerate from an angular
speed of 4.30 rad/s at
t = 0
to 2.00 rad/s at
t = 4.80 s.
The equation describing the angular speed of the wheel during
this time interval is given by
dθ
dt
= ω0e−bt,
where b and ω0 are constants.
(a) What are the values of b and
ω0
during this time interval?
b
=
_______s−1
ω0
=
_______rad/s
(b) What is the magnitude of the angular acceleration...

An automatic dryer spins wet clothes at an angular speed of 5.9
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1. A dentist using a dental drill brings it from rest to maximum
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(a) What is the angular acceleration of the drill in
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rev/s2
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the 3.2 s time interval.
rev
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is one keyboard character.
3....

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